Data output from Javascript

The purpose of this paper is to review the advantages of the Javascript programming language for demonstration programs. A major disadvantage is the difficulty of exporting data from such programs, felt particularly when graphical output is wanted. The paper describes and compares two ways of overcoming the difficulty.

One of the methods depends on transferring data from the screen display via the “clipboard”; the other involves transfer of data into e‐mail messages.

The “clipboard” method is the simpler and more intuitive of the two and was used by the author to produce graphs, but the e‐mail method could be advantageous where larger amounts of data have to be transferred.

Both of the methods are extremely tedious in use, and where data has to be transferred repeatedly, for instance in studies where repeated inspection of results in graphical form is needed, the solution would almost certainly be to choose a programming language other than Javascript.

The paper discusses what is believed to be a novel method of transfer of data using e‐mail.